DBAG Class 423

The Deutsche Bahn Class 423 EMU is a light-weight articulated electric railcar for S-Bahn commuter networks in Germany. The train has similar dimensions to its predecessor, the Class 420 EMU, but is significantly lighter and has one large passenger compartment, while that of the 420 is divided into three parts. The 423 additionally has six doors in each carriage (three on each side), which is down from eight on the 420 (four on each side). They are numbered from 423 001 to 423 462.

DBAG Class 423 (and 433)
Three coupled Class 423 at Frankfurt West station
Type and origin
Power typeElectric
BuilderAdtranz/Bombardier, Alstom LHB & ABB consortium
Build date1998 to 2007
Total produced462
Specifications
Configuration:
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 • UICBo′(Bo′)(2′)(Bo′)Bo′
Gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Wheel diameter850 mm (33.46 in)
Length67.4 m (221 ft 1+9⁄16 in)
Loco weight105 t (103 long tons; 116 short tons)
Electric system/s15 kV 16.7 Hz AC
Current pickup(s)Pantograph
Performance figures
Maximum speed140 km/h (87 mph)
Power output2,350 kW (3,150 hp)
Career
LocaleMunich S-Bahn, Cologne S-Bahn, Frankfurt S-Bahn, Stuttgart S-Bahn

Both Munich and Frankfurt ordered Class 423s for their S-Bahn systems; they were delivered between 1999 and 2004. The 423 has spawned a family of slightly modified designs ordered for S-Bahns across Germany: the Class 422, Class 425/426 and Class 430.

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